Cetta
[化] N-二亚乙基三胺四乙酸; N-β-羧乙基二亚乙基三胺四乙酸
🗣️ 情景例句
Excuse me. Can you help me?
对不起 你能帮帮我吗
I'll see if she's in.
我去看看她在不在。
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，